US3335652A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic processing apparatus
Assignee: Polaroid Corp
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Filing: 1965-01-29
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Granted: 1967-08-15
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Expires: 1985-01-29
Abstract
No abstract record available.
Inventors
- 👤 Herman E Erikson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:34
CPC Classifications
G; G03; G03D; G03D9/00; G03D9/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
APPARATUS FOR EFFECTING RUPTURE OF A FRANGIBLE CONTAINER OF PROCESSING FLUID IN A FILM UNIT OF THE SELF-DEVELOPING TYPE WHEREIN SAID CONTAINER IS POSITIONED BETWEEN A PAIR OF SUPERPOSED SHEETS OF SAID FILM UNIT, AND FOR SPREADING SAID FLUID IN A UNIFORMLY THIN LAYER BETWEEN SAID SHEETS, SAID APPARATUS COMPRISING, IN COMBINATION: (A) A PAIR OF ELONGATED, CYLINDRICAL PRESSURE ROLLS BETWEEN WHICH SAID FILM UNIT MAY BE ADVANCED; (B) FIRST SUPPORT MEANS FOR MOUNTING A FIRST OF SAID ROLLS FOR ROTATION ABOUT A FIRST, FIXED AXIS; (C) SECOND SUPPORT MEANS MOUNTED FOR PIVOTAL MOVEMENT WITH RESPECT TO SAID FIRST SUPPORT MEANS; (D) MEANS FOR MOUNTING SAID SECOND ROLL UPON SAID SECOND SUPPORT MEANS FOR ROTATION ABOUT A SECOND AXIS SO ARRANGED WITH RESPECT TO SAID FIRST AXIS THAT PIVOTAL MOVEMENT OF SAID SECOND SUPPORT MEANS IN A FIRST DIRECTION MOVES SAID SECOND ROLL TOWARD SAID FIRST ROLL IN PARALLEL RELATION THERETO;
Claim 2
Dependent Claim
151 words
APPARATUS FOR EFFECTING RUPTURE OF A FRANGIBLE CONTAINER OF PROCESSING FLUID IN A FILM UNIT OF THE SELF-DEVELOPING TYPE WHEREIN SAID CONTAINER IS POSITIONED BETWEEN A PAIR OF SUPERPOSED SHEETS OF SAID FILM UNIT, AND FOR SPREADING SAID FLUID IN A UNIFORMLY THIN LAYER BETWEEN SAID SHEETS, SAID APPARATUS COMPRISING, IN COMBINATION: (A) A PAIR OF ELONGATED, CYLINDRICAL PRESSURE ROLLS BETWEEN WHICH SAID FILM UNIT MAY BE ADVANCED; (B) FIRST SUPPORT MEANS FOR MOUNTING A FIRST OF SAID ROLLS FOR ROTATION ABOUT A FIRST, FIXED AXIS; (C) SECOND SUPPORT MEANS MOUNTED FOR PIVOTAL MOVEMENT WITH RESPECT TO SAID FIRST SUPPORT MEANS; (D) MEANS FOR MOUNTING SAID SECOND ROLL UPON SAID SECOND SUPPORT MEANS FOR ROTATION ABOUT A SECOND AXIS SO ARRANGED WITH RESPECT TO SAID FIRST AXIS THAT PIVOTAL MOVEMENT OF SAID SECOND SUPPORT MEANS IN A FIRST DIRECTION MOVES SAID SECOND ROLL TOWARD SAID FIRST ROLL IN PARALLEL RELATION THERETO;
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-08-14 | 1971-02-13 | 1971-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-14 | 1975-02-13 | 1975-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-14 | 1979-02-13 | 1979-08-15 | $7700.00 | Window Closed / Lapsed |